/*
 * Copyright (C) 2013 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.squareup.picasso;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.widget.ImageView;

class ImageViewAction extends Action<ImageView> {

	Callback callback;

	ImageViewAction(Picasso picasso, ImageView imageView, Request data,
			boolean skipCache, boolean noFade, int errorResId,
			Drawable errorDrawable, String key, Callback callback) {
		super(picasso, imageView, data, skipCache, noFade, errorResId,
				errorDrawable, key);
		this.callback = callback;
	}

	@Override
	public void complete(Bitmap result, Picasso.LoadedFrom from) {
		if (result == null) {
			throw new AssertionError(String.format(
					"Attempted to complete action with no result!\n%s", this));
		}
		ImageView target = this.target.get();
		if (target == null) {
			return;
		}
		Context context = picasso.context;
		boolean debugging = picasso.debugging;
		PicassoDrawable.setBitmap(target, context, result, from, noFade,
				debugging);

		if (callback != null) {
			callback.onSuccess();
		}
	}

	@Override
	public void error() {
		ImageView target = this.target.get();
		if (target == null) {
			return;
		}
		if (errorResId != 0) {
			target.setImageResource(errorResId);
		} else if (errorDrawable != null) {
			target.setImageDrawable(errorDrawable);
		}

		if (callback != null) {
			callback.onError();
		}
	}

	@Override
	void cancel() {
		super.cancel();
		if (callback != null) {
			callback = null;
		}
	}
}
